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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
07/11/2022 |
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Data da última atualização: |
07/11/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ARAUJO, L.; PINTO, F. A. M. F. |
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Título: |
Conidia release and ascospores ejection of Neonectria ditissima in apple branches in São Joaquim, Brazil. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: WORKSHOP BRASILEIRO DE EPIDEMIOLOGIA DE DOENÇAS DE PLANTAS, 6., 2022, Chapecó, SC. Resumos... Brasília: Sociedade Brasileira de Fitopatologia, 2022. p. 33 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazilian conditions during spring/summer, with prolonged periods of leaf wetting, high
temperatures, and relative humidity, are ideal conditions for apple diseases. Only in 2012
European canker caused by Neonectria ditissima was officially confirmed in Brazilian
apple orchards. The disease has high potential to damage fruit production, and reduces
the productivity. Due to the need to eliminate symptomatic branches, and/or all apple tree
to contain epidemics within the orchards, knowledge of N. ditissima spore release is
required to optimize management practices, because it facilitates prediction of European
canker infection risks and improves disease management decisions. Thus, the objective
of the study was to investigate the N. ditissima spore release in apple plants and detached
branches over time. In São Joaquim, Santa Catarina, in Brazilian South region, both
conidia and ascospores of N. ditissima can be released from cankers in apple tissues that
are alive and/or dead during all year. Peaks of spores release of N. ditissima were
observed in traps when there is rainfall, irrespective of the season in Brazil. Ascospores
peaks were more observed and higher in comparison to conidia collected in both traps
and apple tissues. Symptomatic apple detached branches actively release spores of N.
ditissima in the three years of evaluation, however in smaller quantity in comparison to
traps with alive plants. Thus, management measures should be adopted for the control of
European canker dissemination in apple orchards in Brazil MenosBrazilian conditions during spring/summer, with prolonged periods of leaf wetting, high
temperatures, and relative humidity, are ideal conditions for apple diseases. Only in 2012
European canker caused by Neonectria ditissima was officially confirmed in Brazilian
apple orchards. The disease has high potential to damage fruit production, and reduces
the productivity. Due to the need to eliminate symptomatic branches, and/or all apple tree
to contain epidemics within the orchards, knowledge of N. ditissima spore release is
required to optimize management practices, because it facilitates prediction of European
canker infection risks and improves disease management decisions. Thus, the objective
of the study was to investigate the N. ditissima spore release in apple plants and detached
branches over time. In São Joaquim, Santa Catarina, in Brazilian South region, both
conidia and ascospores of N. ditissima can be released from cankers in apple tissues that
are alive and/or dead during all year. Peaks of spores release of N. ditissima were
observed in traps when there is rainfall, irrespective of the season in Brazil. Ascospores
peaks were more observed and higher in comparison to conidia collected in both traps
and apple tissues. Symptomatic apple detached branches actively release spores of N.
ditissima in the three years of evaluation, however in smaller quantity in comparison to
traps with alive plants. Thus, management measures should be adopted for the cont... Mostrar Tudo |
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Thesagro: |
apple diseases. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02142naa a2200145 a 4500
001 1132681
005 2022-11-07
008 2022 bl uuuu u00u1 u #d
100 1 $aARAUJO, L.
245 $aConidia release and ascospores ejection of Neonectria ditissima in apple branches in São Joaquim, Brazil.$h[electronic resource]
260 $c2022
520 $aBrazilian conditions during spring/summer, with prolonged periods of leaf wetting, high temperatures, and relative humidity, are ideal conditions for apple diseases. Only in 2012 European canker caused by Neonectria ditissima was officially confirmed in Brazilian apple orchards. The disease has high potential to damage fruit production, and reduces the productivity. Due to the need to eliminate symptomatic branches, and/or all apple tree to contain epidemics within the orchards, knowledge of N. ditissima spore release is required to optimize management practices, because it facilitates prediction of European canker infection risks and improves disease management decisions. Thus, the objective of the study was to investigate the N. ditissima spore release in apple plants and detached branches over time. In São Joaquim, Santa Catarina, in Brazilian South region, both conidia and ascospores of N. ditissima can be released from cankers in apple tissues that are alive and/or dead during all year. Peaks of spores release of N. ditissima were observed in traps when there is rainfall, irrespective of the season in Brazil. Ascospores peaks were more observed and higher in comparison to conidia collected in both traps and apple tissues. Symptomatic apple detached branches actively release spores of N. ditissima in the three years of evaluation, however in smaller quantity in comparison to traps with alive plants. Thus, management measures should be adopted for the control of European canker dissemination in apple orchards in Brazil
650 $aapple diseases
700 1 $aPINTO, F. A. M. F.
773 $tIn: WORKSHOP BRASILEIRO DE EPIDEMIOLOGIA DE DOENÇAS DE PLANTAS, 6., 2022, Chapecó, SC. Resumos... Brasília: Sociedade Brasileira de Fitopatologia, 2022. p. 33
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